In defense of TPGraders: It must be remembered that they have a few distinct advantages, when examining a coin for grading. 1. They get to examine the coin naked, hand held. 2. They don't have to worry about sometime less than perfect on screen pictures. 3. They can move to coin to see it under various angles if incident light. 4. They have the advantage of the use of a good quality 10X loupe. 5. They don't have to see it under the screen of the plastic of the slab. 6. They may be tempted to grade higher, to have a happy customer, with the greater probability of repeat business.
Nevertheless I really enjoy the challenge of grading other members' coins, so that I can enhance my own grading skills. So keep 'em coming.